Stowaways: First Contact Young Adult Adventure (Golden Aura Book 2)

The aliens have the Earth.
Few humans have survived their attacks, but when Paige and her mom find out about a secret spaceship, they sneak on board.
Now they are stowaways, terrified they'll be caught and executed. But this is their only chance to get back to normal.
In a turn of events, they realize they are not the only stowaways- one of the aliens is also on the ship. And he's out for revenge. Can they save the spaceship?